On channel agile FM demodulator

Details On channel agile FM demodulator On channel agile FM demodulator

1990-05-11

1991-07-30

Pascal, Robert J.

Demodulators

Frequency modulation demodulator

Input signal combined with local oscillator or carrier...

331 23, 331 25, H03D 300

Patent

active

050362917

ABSTRACT:
An on channel frequency agile PLL demodulator is provided using a precise and stable oscillator, such as a VCXO having its output frequency variable over a limited range. The output of the oscillator is multiplied by a multiplication factor to produce a mixing frequency. The multiplication factor scales the limited range of the oscillator to produce a proportionate mixing frequency deviation. A frequency synthesizer is used to enable the demodulator to detect signals on different channels. In one embodiment, the output of the frequency synthesizer is mixed with the scaled oscillator output to provide a mixing frequency having a fixed deviation for all channels.

REFERENCES:
patent: 3927284 (1975-12-01), Jezo
patent: 4077016 (1978-02-01), Sanders et al.
patent: 4292594 (1981-09-01), David et al.
patent: 4633316 (1986-12-01), Burke et al.

Affiliated with

Also associated with

Rating

On channel agile FM demodulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with On channel agile FM demodulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On channel agile FM demodulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1544798